Feature spec
Goal: Send a clear invoice after finishing a job.
- Add a client, line items, a due date, and payment instructions.
- Preview the total before exporting a PDF.
- Keep an editable draft if export fails.
Progressive Muscle Relaxation (Jacobson): PMR
$4.99 · In-app purchases
Evidence scope: No current overall US chart position is available. Category-chart positions shown in discovery are a separate scope. Revenue is a directional model estimate, not verified earnings.
A product spec, screen plans, and build steps for your coding agent.
First kit free with a verified email
Combine features and design from your favorite apps.
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Generating… usually about a minute.
What should your app do differently? Your note travels with the kit so your coding agent builds around your idea.
A product spec, phased build plan, differentiation notes, and screen references.
Illustrative example: an invoice app for independent contractors. Your kit is tailored to the app you choose; this is not its generated content.
Goal: Send a clear invoice after finishing a job.
Invoice editor: Client at the top, editable line items in the middle, total and preview action at the bottom.
States: Empty draft, validation errors beside each field, exporting, and a retry action that preserves the draft.
Hypothesis: Contractors need faster repeat invoices more than more templates.
First experiment: Test duplicating a previous job with five contractors. Watch where they hesitate before expanding the feature set.
The full kit adds a phased build plan, evidence notes, tool prompts, and implementation guidance. It is a plan for your coding agent, not a finished app.
Usage: Mechanics are fair game; never reuse the original name, branding, assets, or verbatim copy.
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Good fit for mobile-first iOS and Android prototypes with managed app scaffolding.
Rork plan preview for Progressive Muscle Relaxation: map the core Health & Fitness workflow, choose the smallest differentiated feature set, define the data and monetization boundaries, then prototype the riskiest user journey first.
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These are generated suggestions, not verified review quotations. Check current App Store reviews and speak with users before treating a possible gap as a requirement.
Hypothesis 1
Assumption to check: Limited variety of exercises may lead to user boredom.
Validate with people who use this workflow before building.
Hypothesis 2
Assumption to check: Some users experience difficulty in audio playback.
Validate with people who use this workflow before building.
Hypothesis 3
Assumption to check: Lack of community features makes it feel isolated.
Validate with people who use this workflow before building.
Hypothesis 4
Assumption to check: No personalized recommendations based on user history.
Validate with people who use this workflow before building.
Original App Store material. Ratings and screenshots describe the existing app, not proof of demand for your version.
Progressive Muscle Relaxation (Jacobson): PMR The anti-stress program by Dr. med. Stephan Frucht - Scientifically proven and effective - In our modern societies, more and more people are looking for an effective, reliable and easy to use relaxation method. Psychological and physical stress caused by fear, diseases, grief over the loss of loved ones, loss of job or pressure at work, demanding parenthood and eldercare or even “just” a busy lifestyle, just to name a few examples, is often experienced as severely burdensome. The Progressive Muscle Relaxation (PMR) edited by Dr. med. Stephan Frucht offers one of the most effective tools of help. PMR improves the quality of living PMR is leading to a deep relaxation of body and soul - the basis for new power, strength and internal stability. The regular practice of PMR has already changed the lives of many people and patients all over the world. PMR is scientifically proven and can easily be integrated into every day life which makes it so successful. This self-help class includes an introduction and an exercise section. The instructed exercises are enriched with music and graphic visualization to help you relax easily. This App is designed to help you learn to relax immediately. Just take your headset and do these exercises accompanied by calming sounds. The success will come very soon! PMR-App is easy and effective Within this App you will find several units of the training programs. The sections of introduction and preparation, the long-form and short-form of PMR, some background information about PMR as well as some advice regarding your stress-management. This App contains: - Information about PMR - Introduction (5 min.) - Preparation and exercise position (4 min.) - Exercises - long version (30 min.) - Exercises - short version (20 min) PMR: Self-empowerment for calmness and happiness The App also includes lots of functional information about PMR. All exercises are visualized graphically. This makes it very easy to get into PMR and achieve success quickly. Dr. med. Stephan Frucht Dr. Frucht publications related to PMR include books, CDs and radio plays for children. As a physician and certified musician with great experience in the area of activating self-healing abilities, Dr. Frucht is convinced of the efficacy of PMR as well as thousands of PMR-users. He recommends PMR as an outstanding therapy in clinical work. Production: Reinhold Hoffmann Text: Stephan Frucht Speaker: Jon Oldham
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Plan a focused first version with your coding agent. These are planning assumptions, not a delivery guarantee.
Choose one audience and one core workflow. Use the kit to agree on its screens, data, and acceptance criteria before building.
Decide which secondary features, integrations, and platform support can wait. Your version does not need to reproduce everything in the original.
Validate external services, specialist technology, data access, and ongoing costs for your chosen scope.
From the Build Kit assessment.
A reliable timeline needs an agreed scope and a technical check. Ask your agent to estimate the phases in BUILD_PLAN.md after that review.